The JavaScript include file found in the quicken online log in form head -> js/min/login.js?ver=build.244 is preventing the use of 1password (http://agilewebsolutions.com/products/1Password) to fill in the user name and password. This problem appears to have started around February 2009 as found at http://support.agilewebsolutions.com/showthread.php?t=14934
I understand it is a lot to ask a large company to look into such a problem but I hope it gets looked at because this is a major usability and security issue for those who have large complex passwords. With a password similar to 9a3dJCV6eBkqB7T4eJFNUF2C86dt63gU it is dangerous to copy and paste for every log in as that puts it in the pasteboard history. Any response, update or explanation is greatly appreciated.